{"product_id":"hertel-30205500-no-54-circuit-board-drill-bit-solid-carbide","title":"Hertel 30205500 No 54 Circuit Board Drill Bit Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 30205500 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and related electronic assembly work. The bit cuts at a wire gauge size of No. 54, corresponding to a decimal diameter of 0.0550 inches (1.40 mm), with a 130-degree drill point angle optimized for clean entry without walking on hard substrates. The fast spiral geometry with a 35-degree helix angle promotes efficient chip evacuation, reducing heat buildup during high-speed spindle operations. A bright polished finish minimizes surface friction throughout the cut.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for use in CNC drilling machines and precision drill presses in PCB manufacturing, electronics production, and prototype shops. The tapered web configuration supports accurate hole placement in tight-tolerance layouts. Beyond circuit board work, the solid carbide construction and right-hand cutting direction also make this bit effective in alloy steel, carbon steel, cast iron, high temperature alloy, stainless steel, and titanium applications where a small-diameter, high-rigidity tool is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNo. 54 wire gauge diameter: 0.0550 inches (1.40 mm) for fine-pitch hole requirements\u003c\/li\u003e\n\u003cli\u003e130-degree drill point angle for controlled penetration and minimal substrate delamination\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction delivers rigidity and wear resistance at small diameters\u003c\/li\u003e\n\u003cli\u003eFast spiral with 35-degree helix angle promotes chip clearance in deep or stacked-board drilling\u003c\/li\u003e\n\u003cli\u003eTapered web configuration supports point strength and accurate self-centering\u003c\/li\u003e\n\u003cli\u003eBright polished finish reduces friction and aids chip flow\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard CNC and manual drill spindles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a precision replacement or production circuit board drill bit for CNC drilling equipment and precision drill presses that accept a 1\/8-inch shank diameter collet or chuck. Verified material compatibility includes alloy steel, carbon steel, cast iron, high temperature alloy, stainless steel, and titanium.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCircuit board drill bits at this diameter are typically installed and operated by machining technicians or PCB fabrication specialists. Ensure the spindle and collet are fully de-energized and at rest before bit changes. Verify collet size matches the 1\/8-inch shank diameter before clamping to prevent runout. Carbide tooling is brittle at small diameters — avoid side loading, manual leverage, or impact during handling and installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 54\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.0550 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (mm)\u003c\/strong\u003e: 1.40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/8 inch (0.1250 inches \/ 3.18 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3\/8 inch (0.4000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-1\/2 inches (38.10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Fast\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0003 to +0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright Polished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Carbon Steel, Cast Iron, High Temperature Alloy, Stainless Steel, Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 30205500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51738179633458,"sku":"30205500","price":16.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ddeb38b95a00b13168b3d1da5503dcf5.jpg?v=1788796625","url":"https:\/\/voomisupply.com\/products\/hertel-30205500-no-54-circuit-board-drill-bit-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}